MM4 purchase

[kalee]

Hi, Thanks for the addition. I have purchased an MM4 duke box with no sound. The amp needs valves but I see the base is marked with what should go in the sockets. It’s there anything else on these units that is a known problem area? Thanks for any advice. I’m looking forward to the learning curve. Cheers

[Ron Rich]

Hi Kalee,
Yes-- quite a bit must be done prior to re-valving (tubing) it ! The learning curve is steep ! You will need to at least have some help from someone with experience. But you can do it--as others have ! Ron Rich